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33KV SF6 Gas Load Break Switch

These load break switch 33kvare intended for outdoor applications. They can be mounted either horizontally or vertically, and are suitable for electrical operation and power distribution by power distribution cabinet. These 33kv load break switch are tested by our quality controllers on various parameters before delivering them to our valued customer ends. We manufacture these switches with the help of cutting edge technology, which allows us to deliver a flawless product that is sure to be flawless as well. The 33 kV live parts are not directly touchable and hence guarantee protection from hazards.

33kv Load Break Switch Application

The 33kv pole mounted switchis made of a proven rugged, corrosion-resistant material (304L stainless steel plate for warships), ensuring a long service life (30 years) and a range of operations, with the characteristics ideal for on-column equipment.

33kv Load Break SwitchTechnical Parameters

Products Type

FWX-36

Basic Ratings

Maximum System Voltage

36kV

Rated Continuous Current

630A

Rated Frequency

50/60Hz

Short Time Withstand Current

16kA/1sec

Making and Breaking Capacity

Mainly Active Load Current

630A

Number of Load-break Operations

400times

Short-circuit Making Current (peak)

40kA

Number of Making Operations

5 times

Cable Charging Current

25A

Line Charging Current

Closed Loop Circuit Current

630A

Transformer Magnetizing Current

22A

Power Frequency Withstand Current Test

Wet Condition-10sec Ph- Ph-Eth, Across Interrupters

70kV

DryCondition-1min,Ph- Ph, Phase to Earth

95kV

Dry Condition - 1 min Across Interrupter

110kV

Impulse Withstand Current Test( 1.2 x 50 µs )

Phase to Phase, Phase to Earth

195kV

Across Interrupter

215kV

Other Ratings & Specifications

Internal Arc Test

20kA /0.1 sec

Arc Extinction Medium

SF6 Gas

Insulation Medium

SF6 Gas

Creepage Distance (Porcelain)

1055mm

Creepage Distance (Silicon)

1550mm

Dry arcing distance

IP Level

65

Operation Performance

Closing/Opening Time

<1sec

Mechanical Operations (Guaranteed)

10000times

Operating Temperature (*Manual Type)

-25~+70℃

Gas Pressure

Nominal Pressure (MPa, at 20°C)

Bursting Pressure (MPa)

  1. ~0.6

Minimum Gas Pressure (MPa)

Leakage Rate (cc/ sec)

≤0.5%

Voltage sensors

CT ABC 10P10 5VA

400:05:00

Incoming side and outgoing side of the voltage sensor

6 Voltage sensor(built-in)

Phase voltage:(24(36)kV/√3)/(3.25V/√3)

Special attention should be paid to the voltage sensor, which must be directly fed by the 33KV load break interrupter switch.

No additional adjustment circuit can be added to the controller. The voltage signal of the 33kv load break switch into the test line needs to be tested separately.

Zhuhai Gopower Smart Grid Co., Ltd. was founded in 1998. It is one of the earliest high-tech electric power equipment ltdengaged in R&D and production of (12KV-40.5kV) medium-voltage transmission and distribution intelligent control equipment in China.



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